Razor blade holder



FIG. 1 is a left side elevational view of a razor blade holder showing my new design, the right side being a mirror image of the left side;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is another left side elevational view thereof, with a razor shown in broken lines for illustration purposes only and forming no part of the claimed design; and,

FIG. 7 is a perspective view thereof. 

The ornamental design for a razor blade holder, as shown and described. 